Method and apparatus for separating ore



I R. v. SMITHL METHOD AND APPARATUS FOR SEPARATING ORE.

APPLICATION FILED DEC. 10, 1917.

1 ,407,229, Patented Feb. 21, 1922.

f gwue 11 4'01;

' illustrating the movement nn nvorin sms, or steam,

To all whom it mag concern: I

' Bei known that I, REINOLDIVL a citizen of the; United States, and residing eparating Ore,1o,f which the following is a specificationig' The .-present invention relates to'improve- .=.ments i-n method ofandapparatus for separating or sizing ore and; .is ;,particularly adapted for separating relatively .finelyl-divided ores. 7

.- By'the constructions heretofore employed,

.it' has beenpractically. impossible toseparate or size .ores which. willpalss through screens offrom- 120 to 150'meshjand-finer.

,By the methodfand apparatus hereinafter described, it is possible to separate a body of ore into three grades orsizes-namely,

.fine mesh screengbut requires regrlnding, 5

second, a fine granularf product' that passes product.

- In the accompanying drawings:

Figure 1- is a plan'of an apparatus adapted to. carry out the present invention;

Figure 2 is alongitu'dinal vertical section of such apparatus; v

Figure. 3.is. an.endview; H Figures Afand 5 are diagrammatic views imparted to the separating screen;- Y I Figure 6 is a detail sectional view of the screen andits-supporting irame. I i V Referring to the drawings, 1- designates a water tank or receptacle, thebottom portion of which is divided by suitable walls into two chambers or compartments 2, 3, and which isfurther provided witha water supply or inlet pipe-4: and an overflowor waste p1pe5..

'A' screen supported in a lojngitudinallyinclined position within'the tank below the water leve lzthe rein in suchaimanner that: when itisivibrated laterally;.the

,o-n thescreen-theposition indicated in Figside portions thereof will bemgre violently vibrated than the intermediate, middle portion, whereby the finer particles of a'body of ore deposited on the screen will be caused 1 Specification of Letters 7, :the upper ends of which are 'pivotally connected with standards 8 rising from the ed'so that said linksoccupy an inclined po- "sitionas represented in :,Figures 3 to'-' 5. 'iMeansare provided for vibrating'the screen ."laterally which, as shown, :comprise an arm 9 rising from the screen .supporti'ng frame -1 and ythe alternate lifting and suction-of the water together withthe relative violence fivrrmron AND Ari ARA'rUsroRsEr' nArme onE.

V atenteu'reb. 21',- 1922,

- Application filed Decernber 1c, 1917. 1 Seria1"1\1fo. 2 06,470.

otthescr'eenJand caused to travel down- .wardly *over the lower end 'into the com-- 'partment -QZ"{:

lat Eureka, icounty'of Jua'b, State of Utah; .-have invented certain new and-"useful Imgrovements in Methods and Apparatus for AS shown thescreen i s'su pported by-links wallsof thetankl; The upper ends of" the links 7 are spaced apart a greater extent ?-than the width of thevscreen supporting frame to which the lower ends are conne'ctand alink" l0 connecting said'armiwith a the arm-'9; at different points in its length,

5 saidarm being shown as "providedwith a through the screen, and third, -aslime plurality of vertically spaced apertures with any 1 one v-of-which' the link 10 may' be en-.

Referring: to" the diagrammatic views ,4

middle portion.:;i-As before noted,itheentire screen is submergedinthe'waterin the tank of the motions atthe middle and edge portionsof the screen acts to throw the coarser .?particles of ore tolthe top in the middle section of the screen and draw the smaller" particles through the side portions thereof. These motions keep the bodyof oversize-Imaterial travelling downward'and-turning over on the-screen in the middle section thereof,

1eaving-.the -sideportions freej-to permit the escape of: the; small particles into the e crank. 11' on a shaftv 12'-mounted ini suitable .,;bearings ion the tank and provided with I .j driving pulley or belt wheel-13'. The extent of the "vibration, of the screen *frame may: be varied'by connecting'ithe :link' 10 with compartment'3,. The body of ore assumes ure 1. -The settlement. of slime'is prevented bythe: gradual movement of the body ofore together with the agitation of the water due to the movement of the. screen; and such slime is. car'riedofl? through the outletprpe the upward inclination of the screen. Each of the compartments 2, 3, is provided with a suitable outlet through which the contents thereof may be withdrawn as desired and the ore to be treated is supplied to the screen.

6 by any suitable means, not shown V The screen 6 1s secured 1n the vibrating frame by means which can be readily disengaged. for example, suitableset screws, so that the screen may be readily removed and replaced by another whenever desired. =-lVh1le the drawings illustrate one means which maybe employed for vibratingthe' screenas described, it will be evident that the invention is-not limited to. the use of this particular means, as other devices may be provided for imparting similar motion to the screen.

Having thus described the. invention, what is claimed is:

1. The, herein described. method of sep- .aratin'g ore comprising supplying ore to an elongated screen'submerged in water, and

sufficiently more violent at the sides of the screen. than at the intermediate middle portion as to cause the coarser particles of ore to collect on top at the middle portion and the finer particles to pass through along the side portions.

' 2. The. herein described method of separating ore comprising supplying ore to a screen submerged in water, and positioned Y to cause the ore to pass toward one end thereof, vibrating the screen laterally of the direction in which the ore travels'over the screen, the vibrating movement being more violent at the sides of the screen than at the intermediate middle portion. and

-' causing a current of water to flow over the screen in a direction opposite to thepath of movement of the ore thereon.

3. The herein described method of separating ore comprising supplying ore to a screen sosubmerged in water as to permit water to pass over it freely from the sides and so positioned as to cause the ore to pass toward one end thereof and vibrating the screen laterally of the direction in which the ore travels over thesoree n, the vibration of the sides of the screen including alternate up and down movement whereby there is sufiiciently more violent agitation along the sides thanin the center to cause heavy material to collect in the central portion.

1 4. An ore separating apparatus comprising a water tank having means for supplying water thereto and an elevated outlet, a screen supported within the tank below the "water level, and inclined to cause ore to move thereover 'in -adirection opposite to the flow of water through the tank, 'means for vibrating the screen laterally of the dimotion in which the ore and water travel thereon, the vibrating movement being stronger adjacent the sides of the screen than at the intermediate middle portion, and two receptacles adapted, respectively, to receive the material passing through the screenand that delivered from the discharge end thereof. 7

5. An ore separating apparatus comprising a Water tank, means for: creating a flow ofwater through the tank, a screenfsup ported in a longitudinally inclined position downwardly from its receiving end to its discharge end beneath the level of water in the tank, the inclination of the screen: being upward in the direction of flow- 'of water, and means for vibrating the screen laterally. 6. An ore separating'appar'atus comprising a water tank, a screen supported in' a longitudinally inclinedp'osition in the tank below the level of water therein and adapted to have the water in said tank pass over it freely'from its edges, and means for im-' parting lateral vibration 'to the screen adapted to vibrate the sideportions thereof more violently than the-intermediate portion. 7

7 An ore separating apparatus comprising a water tank, having two compartments or receptacles in its'bottom, a screen sup ported in a longitudinally inclined posi- 'tion over said receptacles and beneath the level of water in the tank, and means for vibrating the screen laterally".

8. An ore separating apparatus comprising a Water tank, an elongated screen suspended in said tank below the water level,

inclined longitudinally and adapted to re ceive ore at its upper end, and sufliciently removedffr'oni' the walls of the tank to'perinit lateral and vertical movement, means for vibrating the screen laterally and at the same time vibrating one-side upward and the other downward unequal. amounts.

ing a watertank. an elongated screen suspended in said tank below thewater level for vibrating the screen laterally and at. the'same time vibrating one'sldelupward and the other downward unequal amounts, m1; means for'keeping separate material passlng through the screen andflinaterial 9. A n ore separating apparatuscomprispassing over the lower end of the screen. l

10. An ore separating apparatus comprising a water tank, an elongated screen suspended in said tank below the water level inclined'longitudinally and adapted toreceive ore at its upperend and sufficiently remov a rrbm the'walls of'the tank to. per."

mit lateral and vertical movement, means let for said tank below the screen at one.

for vibrating the screen laterally and at the end, and awvater outlet above the screen at I same time vibrating one side upward and I the'other end. 10

the other downward unequal amounts, and In testimony whereof I afliX my sign'ameans for keeping separate material passture. ing through the screen and material passing over the lower end of the screen, a Water in- I a REINOLD V, 

